Effect of Water Pollution on Marine Life

Water pollution may severely affect human, plant, and animal life. The effect of water pollution on marine life (animals and plants) is visible in two phenomena— Eutrophication and Biomagnification.


Effect of Water Pollution on Marine Life


Eutrophication

It is a process in which oxygen begins to deplete from water bodies either naturally or because of human activities. Nutrients and chemicals are discharged into water bodies through sewage and effluents. Accumulation of these into water bodies results in the growth of phytoplankton and algae. This obstructs the penetration of oxygen and sunlight into water bodies which may result in the death of aquatic organisms.

Biomagnification

When the quantities of harmful substances such as pesticides and insecticides increase in the food chain of marine and aquatic organisms and are in turn consumed by other living beings, it is known as biomagnification.


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